$286+ Cheap flights from Seattle (SEA) to Helsinki (HEL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HEL
Jul 2 — Jul 91
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Helsinki with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Helsinki-Vantaa are usually found in January or October, booked 73 days in advance, depart on a Wednesday or Tuesday and return on a Tuesday
Cheap flight deals from Seattle to Helsinki
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to HelsinkiExplore the most affordable flight options available from Seattle to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 2, 2026.
Explore the most affordable flight options available from Seattle to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 2, 2026.
This Mytrip deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:00 am
SEA
- HEL
2 stops28h 35m
Multiple Airlines
Thu 8/279:20 pm
HEL
- SEA
3 stops33h 47m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$600
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/133:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Thu 9/244:00 pm
HEL
- SEA
1 stop31h 45m
Scandinavian Airlines
Deal found 5/28![Scandinavian Airlines logo]()
$723
This Mytrip deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:40 pm
SEA
- HEL
3 stops30h 40m
Multiple Airlines
Sat 9/55:30 am
HEL
- SEA
3 stops22h 25m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$761
This Mytrip deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:00 pm
SEA
- HEL
3 stops19h 40m
Multiple Airlines
Thu 8/275:30 am
HEL
- SEA
3 stops22h 25m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$773
This Scandinavian Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/133:55 pm
SEA
- HEL
1 stop18h 30m
Scandinavian Airlines
Sat 9/266:10 am
HEL
- SEA
1 stop17h 35m
Scandinavian Airlines
Deal found 5/28![Scandinavian Airlines logo]()
$776
This Scandinavian Airlines deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/133:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Fri 9/257:15 am
HEL
- SEA
2 stops16h 30m
Scandinavian Airlines
Deal found 5/28![Scandinavian Airlines logo]()
$784
This Kiwi.com deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/13:55 pm
SEA
- HEL
1 stop32h 40m
Scandinavian Airlines
Tue 9/86:10 am
HEL
- SEA
1 stop17h 35m
Scandinavian Airlines
Deal found 5/28![Scandinavian Airlines logo]()
$800
This Gotogate deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/263:35 pm
SEA
- HEL
1 stop12h 20m
Icelandair
Sat 10/311:55 pm
HEL
- SEA
1 stop13h 05m
Icelandair
Deal found 6/1![Icelandair logo]()
$804
This Gotogate deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/93:40 pm
SEA
- HEL
1 stop21h 20m
Icelandair
Mon 10/1211:55 pm
HEL
- SEA
1 stop28h 00m
Icelandair
Deal found 5/29![Icelandair logo]()
$807
This Ticket deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:40 pm
SEA
- HEL
1 stop12h 20m
Icelandair
Sat 9/53:00 pm
HEL
- SEA
1 stop30h 45m
Icelandair
Deal found 5/29![Icelandair logo]()
$808
Best flights from Seattle to HelsinkiDiscover carefully curated flight deals from Seattle to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 2, 2026.
Discover carefully curated flight deals from Seattle to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 2, 2026.
This Icelandair deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/113:40 pm
SEA
- HEL
1 stop21h 20m
Icelandair
Thu 10/153:00 pm
HEL
- SEA
1 stop15h 40m
Icelandair
Deal found 5/27![Icelandair logo]()
$847
This Turkish Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:05 pm
SEA
- HEL
1 stop30h 25m
Turkish Airlines
Tue 11/1712:25 pm
HEL
- SEA
1 stop38h 45m
Turkish Airlines
Deal found 5/30![Turkish Airlines logo]()
$883
This Scandinavian Airlines deal was found by Cheapflights users on 5/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/283:55 pm
SEA
- HEL
2 stops33h 30m
Scandinavian Airlines
Fri 9/187:15 am
HEL
- SEA
2 stops16h 30m
Scandinavian Airlines
Deal found 5/27![Scandinavian Airlines logo]()
$1,028
This Delta deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/201:50 pm
SEA
- HEL
1 stop17h 50m
Delta
Thu 8/277:00 am
HEL
- SEA
1 stop14h 37m
Delta
Deal found 5/29![Delta logo]()
$1,105
This Icelandair deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:00 pm
SEA
- HEL
2 stops14h 45m
Icelandair
Mon 9/2111:40 am
HEL
- SEA
2 stops40h 15m
Icelandair
Deal found 5/31![Icelandair logo]()
$956
This Scandinavian Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/102:30 pm
SEA
- HEL
2 stops19h 50m
Scandinavian Airlines
Tue 11/177:00 am
HEL
- SEA
3 stops22h 05m
Scandinavian Airlines
Deal found 5/30![Scandinavian Airlines logo]()
$1,090
This Scandinavian Airlines deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1011:10 am
SEA
- HEL
3 stops18h 45m
Scandinavian Airlines
Mon 11/1611:15 am
HEL
- SEA
2 stops20h 57m
Scandinavian Airlines
Deal found 5/30![Scandinavian Airlines logo]()
$1,120
This Scandinavian Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/123:55 pm
SEA
- HEL
2 stops41h 15m
Scandinavian Airlines
Tue 7/289:35 am
HEL
- SEA
2 stops14h 10m
Scandinavian Airlines
Deal found 6/1![Scandinavian Airlines logo]()
$1,154
This Scandinavian Airlines deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2010:35 am
SEA
- HEL
2 stops18h 45m
Scandinavian Airlines
Sat 9/57:10 pm
HEL
- SEA
2 stops28h 35m
Scandinavian Airlines
Deal found 5/29![Scandinavian Airlines logo]()
$1,162
Last-minute flights from Seattle to HelsinkiDiscover last-minute flight deals from Seattle to Helsinki. Data last updated June 2, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Helsinki. Data last updated June 2, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/1011:25 pm
SEA
- HEL
1 stop28h 35m
Icelandair
Thu 6/253:00 pm
HEL
- SEA
1 stop15h 40m
Icelandair
Deal found 5/31![Icelandair logo]()
$859
This Gotogate deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/163:40 pm
SEA
- HEL
1 stop12h 20m
Icelandair
Mon 7/2011:30 pm
HEL
- SEA
1 stop22h 15m
Icelandair
Deal found 5/29![Icelandair logo]()
$837
This Mytrip deal was found by Cheapflights users on 5/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/163:40 pm
SEA
- HEL
3 stops32h 30m
Multiple Airlines
Mon 7/2011:30 pm
HEL
- SEA
3 stops29h 02m
Multiple Airlines
Deal found 5/29![Multiple Airlines logo]()
$867
This Flightnetwork deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/193:40 pm
SEA
- HEL
1 stop20h 50m
Icelandair
Tue 8/43:00 pm
HEL
- SEA
1 stop15h 40m
Icelandair
Deal found 6/1![Icelandair logo]()
$832
This oojo deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/193:40 pm
SEA
- HEL
1 stop20h 50m
Icelandair
Mon 8/311:30 pm
HEL
- SEA
1 stop22h 15m
Icelandair
Deal found 5/30![Icelandair logo]()
$842
This Mytrip deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/213:40 pm
SEA
- HEL
2 stops15h 45m
Multiple Airlines
Tue 7/283:40 pm
HEL
- SEA
3 stops30h 05m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$870
This FlightHub deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/263:40 pm
SEA
- HEL
1 stop20h 50m
Icelandair
Sun 8/23:00 pm
HEL
- SEA
1 stop30h 45m
Icelandair
Deal found 5/30![Icelandair logo]()
$855
This oojo deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:00 pm
SEA
- HEL
1 stop33h 00m
Icelandair
Tue 8/43:00 pm
HEL
- SEA
1 stop15h 40m
Icelandair
Deal found 5/30![Icelandair logo]()
$844
This oojo deal was found by Cheapflights users on 5/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2911:25 pm
SEA
- HEL
1 stop28h 35m
Icelandair
Sun 8/23:00 pm
HEL
- SEA
1 stop30h 45m
Icelandair
Deal found 5/28![Icelandair logo]()
$846
One-way flights from Seattle to HelsinkiSearch for one-way flight options from Seattle to Helsinki. Find affordable one-way fares based on user searches. Data last updated June 2, 2026.
Search for one-way flight options from Seattle to Helsinki. Find affordable one-way fares based on user searches. Data last updated June 2, 2026.
This Trip.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:00 pm
SEA
- HEL
2 stops28h 30m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$286
This Trip.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/277:00 pm
SEA
- HEL
2 stops17h 35m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:25 pm
SEA
- HEL
2 stops31h 15m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$292
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:25 pm
SEA
- HEL
2 stops48h 55m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$296
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/133:40 pm
SEA
- HEL
2 stops15h 00m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$304
This Kiwi.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:00 pm
SEA
- HEL
2 stops27h 20m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$307
This Kiwi.com deal was found by Cheapflights users on 5/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:25 pm
SEA
- HEL
2 stops31h 15m
Multiple Airlines
Deal found 5/30![Multiple Airlines logo]()
$309
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/243:40 pm
SEA
- HEL
2 stops30h 40m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$310
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/411:25 pm
SEA
- HEL
2 stops46h 55m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$311
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:25 pm
SEA
- HEL
2 stops31h 15m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$312
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/311:25 pm
SEA
- HEL
3 stops25h 50m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$315
This Kiwi.com deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:00 pm
SEA
- HEL
2 stops27h 20m
Multiple Airlines
Deal found 5/31![Multiple Airlines logo]()
$322
Find flight deals from Seattle to Helsinki
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated June 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $600 (Mytrip) |
One-way from | $286 (Trip.com) |
Popular in | June |
Cheapest in | January |
Average price | $1,176 |
Good round-trip deal | $972 or less |
Good one-way deal | $454 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Helsinki that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 2, 2026.
Use the filters below to find and compare flights from Seattle to Helsinki that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Sun 10/11
3:40 pm-11:00 pm
1 stop21h 20m
Helsinki-Vantaa
Thu 10/15
3:00 pm-8:40 pm
1 stop15h 40m
$847
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 11/10
7:05 pm-11:30 am
1 stop30h 25m
Helsinki-Vantaa
Tue 11/17
12:25 pm-5:10 pm
1 stop38h 45m
$883
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Sun 8/30
7:00 pm-7:45 pm
2 stops14h 45m
Helsinki-Vantaa
Mon 9/21
11:40 am-5:55 pm
2 stops40h 15m
$956
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Fri 8/28
3:55 pm-11:25 am
2 stops33h 30m
Helsinki-Vantaa
Fri 9/18
7:15 am-1:45 pm
2 stops16h 30m
$1,028
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 11/10
2:30 pm-8:20 pm
2 stops19h 50m
Helsinki-Vantaa
Tue 11/17
7:00 am-7:05 pm
3 stops22h 05m
$1,090
Quickest round-trip
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Thu 8/20
1:50 pm-5:40 pm
1 stop17h 50m
Helsinki-Vantaa
Thu 8/27
7:00 am-11:37 am
1 stop14h 37m
$1,105
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 11/10
11:10 am-3:55 pm
3 stops18h 45m
Helsinki-Vantaa
Mon 11/16
11:15 am-10:12 pm
2 stops20h 57m
$1,120
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Sun 7/12
3:55 pm-7:10 pm
2 stops41h 15m
Helsinki-Vantaa
Tue 7/28
9:35 am-1:45 pm
2 stops14h 10m
$1,154
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Thu 8/20
10:35 am-3:20 pm
2 stops18h 45m
Helsinki-Vantaa
Sat 9/5
7:10 pm-1:45 pm
2 stops28h 35m
$1,162
Cheapest one-way
Quickest one-way
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 8/18
3:40 pm-2:00 pm
1 stop12h 20m
$396
Showing 1-10 of 18 resultsSorted by cheapest first
Compare providers for flights from Seattle to Helsinki
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Helsinki in June.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-Helsinki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Helsinki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Helsinki flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Helsinki flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Helsinki
Have a flexible travel schedule? Discover the best time to fly to Helsinki from Seattle with our price prediction graph.
SEA-HEL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Helsinki
How far ahead should I book a flight from Seattle to Helsinki?
The best time to book flights from Seattle to Helsinki is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Seattle to Helsinki?
Currently, January is the cheapest month in which you can book a flight from Seattle to Helsinki (average of $540). Flying from Seattle to Helsinki in June is currently the most expensive (average of $1,176). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from SEA to HEL?
Find hourly flight availability from Seattle to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 2, 2026.
When flying from Seattle to Helsinki, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.
Reviews of airlines servicing Helsinki
Get insights into the airlines that provide service to Helsinki. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helsinki. Reviews last updated June 2, 2026.
Get a feel of what it's like to fly with Finnair,Scandinavian Airlines, andIcelandair from Seattle to Helsinki by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
8.2
Boarding
7.7
Comfort
7.5
Overall
7.7
Entertainment
6.9
Food
6.7
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
LAX - HEL
Crew
8.2
Boarding
7.7
Comfort
7.5
Overall
7.7
Entertainment
6.9
Food
6.7
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
LAX - HEL
Crew
8.2
Boarding
7.7
Comfort
7.5
Overall
7.7
Entertainment
6.9
Food
6.7
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
LAX - HEL
Crew
8.2
Boarding
7.7
Comfort
7.5
Overall
7.7
Entertainment
6.9
Food
6.7
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
LAX - HEL
Crew
8.2
Boarding
7.7
Comfort
7.5
Overall
7.7
Entertainment
6.9
Food
6.7
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
LAX - HEL
Crew
8.2
Boarding
7.7
Comfort
7.5
Overall
7.7
Entertainment
6.9
Food
6.7
Reviews
1 / 20
10.0
ExcellentAnonymous,May 2026
LAX - HEL
Related info for your journey
Find useful and relevant information for your journey from Seattle to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Traveling to a place near Helsinki?
Book flights to Helsinki if you plan to visit one of these locationsVantaa
Lahti
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Complete your trip
Complete your trip to Helsinki by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Seattle to Helsinki by cabin class
Find flights from Seattle to Helsinki, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Helsinki
Explore flights to Helsinki departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on June 2, 2026.
Seattle and Helsinki flights
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Other flights from Seattle
Browse through other flights departing from Seattle. Flights are based on user searches made on Cheapflights and were last updated on June 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 5 airlines flying from Seattle to Helsinki
Discover the top 5 airlines that operate flights from Seattle to Helsinki. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$323 | Average$548 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$514 | Average$858 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$725 | Average$989 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$786 | Average$1,176 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$852 | Average$1,246 | FlexibilityNo cancel fee | On-time76% |